Settle an argument

eire1990

Right so heres the question which has more bhp a 1.6 civic sir or 1.6 civic vti i think there the same but a few of my friends say the sir is faster

Bigtoe107

There the same but the sir is slightly lighter and runs higher octane as standard, also being Japanese most sir's are better maintained from new than
a Uk spec vti, thus they lose less horses over the years.

Graham_B18C

Well according to Honest John the VTI is 167 bhp, that's the 1.8 B18C4, it doesn't mention the power of the 1.6 VTI (B16A2) but it does say:

1997 saw the introduction of the VTI model. There was a rear VTI badge, and decals of "DOHC VTEC" on the rear doors. Then a limited edition VTI-S. The VTI came in 2 different flavours - the DOHC 1.6VTI (B16A2 engine) and the DOHC 1.8VTI (B18C4). The 1.6VTI car was actually slightly faster in acceleration than the 1.8 due to the different gear ratios (the power developed by the engine was higher in the 1.8, but the measured power at the wheels was not as pronounced due to the different gear ratios. The 1.6 was also a lighter engine). Front/rear disc brakes were standard on all VTI/VTI-S versions. The 5-door versions included a much-needed Torsen limited slip differential, which went some way to
eliminate understeer.

So if you're talking about the 1.6 VTI then the SIR has more power at 170bhp.

Atomic Pineapple

From new the SIR has 10 bhp more than the VTI.

Senna

I'm nearly sure they're the same, only the jap SiR will be quoting a higher bhp because of higher octane fuel. The engines are the same in both, only reason its not called a vti is the jap brought out their 1.5 130bhp first and called it a VTi. Plus the jap SiR will always be quoted as PS, which is a tiny bit more than Bhp.

edit; found this
6G '96-'00 SiRII - Engine (Japan)
Displacement cc (cu in) 1595 (247.2)
Horsepower @ RPM 168 @ 7800
Torque @ RPM 116 @ 7300
Chasis EK
Compression 10.4:1
Note Same engine used in the European Civic VTi
http://sirspeed.info/main.php?load=sir.php&sel=othersir

5500

I had a 99 vti hatch that made 158bhp stock, same day it was dyno'd two ek sir's made 162 and 163 respectivly. There was nothing in it between the car's though

Senna

The same model cars (especially if a few years old) will always give slight variations in BHP on a rolling road, some could be different fresh out of the factory.

bmw535d

the vti(b16a2) has 158-160bhp,

the sir1(b16a)(jdm) has 168bhp

and the sir2(b16a5) has 174bhp(note the sir2 only came with and auto gearbox)

Caliden

Once the SIR is on irish fuel I don't see there being any difference at all

projectgtr

bmw535d wrote: »

the vti(b16a2) has 158-160bhp,

the sir1(b16a)(jdm) has 168bhp

and the sir2(b16a5) has 174bhp(note the sir2 only came with and auto gearbox)

you sure about the SiR2 part? ive never seen an auto SiR, mines an SiR2 according to my auction sheet and its manual

Senna

The UK vti only has 158bhp (i thought it was more), the SiR has 168bhp+.
The SiR engine has a different compression and different cam profile, plus smaller cat and different ECU.

coronaextra

Senna wrote: »

The UK vti only has 158bhp (i thought it was more), the SiR has 168bhp+.
The SiR engine has a different compression and different cam profile, plus smaller cat and different ECU.

correct!!! Also the SIR had the option of an LSD where as it was not an option on the vti (open to correction).